Like all the planets in our solar system, Earth and Mars go around the sun. But Earth is closer to the sun, and therefore revolves along its orbit(轨道) quickly. Earth makes two trips around the Sun in about the same amount of time that Mars takes to make one trip. So sometimes the...
Scientists say they discovered an earth-like planet outside our solar system(太阳系) .It is a planet that could support life.This planet is just 4.2 light years away from us.It is so close that space scientists have considered it as a nextdoor neighbor.They say it could be reached by an...
A. Stars with Earth-like Planets OrbitingB. Planet Exploration in the UniverseC. Potentially Habitable PlanetsD. A Neighboring Possible Earth-like Planet 相关知识点: 试题来源: 解析 Scientists say they discovered an earth-like planet outside our solar system(太阳系). It is a planet that ...
4.由上文的So from the early number of a billion, this new research suggests there may be as many possible earth-like planets as there are stars in the Galary(银河系 ). T hat is, anywhere from 250 billion to 500 billion"earths".可知指代的是那儿有很多超过人们想象的像地球那样的星球。5....
CScientists say they discovered an earth-like planet outside our solar system. It is a planet that couldsupport life.This planet is just 4. 2 light years away from us. It is so close that space scientists have consideredit as a next door neighbor. They say it could be reached by an ...
“one of the planets in our solar system” is a/an ___. A. appositive B. adverbial C. object D. predicate 相关知识点: 试题来源: 解析 A。这里“one of the planets in our solar system”是对“the earth”的补充说明,是同位语。反馈 收藏 ...
题目There are many planets in our solar system. Earth is one of them. It is known for having life. What makes Earth different from other planets? A. It is very big. B. It has water and an atmosphere. C. It is very hot. D. It is very cold. 相关知识点: ...
百度试题 结果1 题目There are many planets in our solar system. Earth is a ___. A. star B. planet C. moon D. satellite 相关知识点: 试题来源: 解析 B。本题考查对太阳系中地球的分类,地球是一颗行星。反馈 收藏
There are many planets in our solar system. Earth is a ___ planet. A. gas B. solid C. liquid D. icy 相关知识点: 试题来源: 解析 B。本题考查对太阳系中地球的了解以及词汇的掌握。地球是一颗固态行星,solid 表示“固体的、固态的”,符合题意。gas 是“气体”,liquid 是“液体”,icy 是“冰...
There are many planets in our solar system. Earth is a planet that has water. Which planet is known as the Red Planet? A. Mercury B. Venus C. Mars D. Jupiter 相关知识点: 试题来源: 解析 C。解析:Mars is known as the Red Planet. Mercury is close to the sun and not known as ...